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人気のある Word Problems >

Tony's age is 28 years older than Mack. 5 years ago, Tony was 5 times older than Mack. Find their present ages.

解

T o n y^{'} s a g e i s 28 ye a rs o l d er t han M a c k . 5 ye a rs a g o, T o n y w a s 5 t im es o l d er t han M a c k . F in d t h e i r p rese n t a g es .

解

Tony^{'} s age is : 40

Mack^{'} s age is : 12

解答ステップ

Translate the problem into an equation:

x - 5 = 5 (x - 28 - 5)

x

を解く

x - 5 = 5 (x - 28 - 5) : x = 40

発見する age

Tony^{'} s age is : 40

Mack^{'} s age is : 12

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